fix fk migrate

alice/cli.py

@@ -5,18 +5,17 @@ import sys
 from enum import Enum
 
 import asyncclick as click
-from asyncclick import BadParameter, ClickException
+from asyncclick import BadOptionUsage, BadParameter, Context, UsageError
-from tortoise import generate_schema_for_client, ConfigurationError, Tortoise
+from tortoise import Tortoise, generate_schema_for_client
 
 from alice.migrate import Migrate
 from alice.utils import get_app_connection
 
-sys.path.append(os.getcwd())
-
 
 class Color(str, Enum):
     green = "green"
     red = "red"
+    yellow = "yellow"
 
 
 @click.group(context_settings={"help_option_names": ["-h", "--help"]})
@@ -37,55 +36,55 @@ class Color(str, Enum):
 )
 @click.option("--app", default="models", show_default=True, help="Tortoise-ORM app name.")
 @click.pass_context
-async def cli(ctx, config, tortoise_orm, location, app):
+async def cli(ctx: Context, config, tortoise_orm, location, app):
     ctx.ensure_object(dict)
     try:
-        config_module = importlib.import_module(config)
+        config_module = importlib.import_module(config, ".")
     except ModuleNotFoundError:
-        raise BadParameter(param_hint=["--tortoise-orm"], message=f'No module named "{config}"')
+        raise BadOptionUsage(ctx=ctx, message=f'No module named "{config}"', option_name="--config")
     config = getattr(config_module, tortoise_orm, None)
     if not config:
-        raise BadParameter(
+        raise BadOptionUsage(f'Can\'t get "{tortoise_orm}" from module "{config_module}"', ctx=ctx)
-            param_hint=["--config"],
+
-            message=f'Can\'t get "{tortoise_orm}" from module "{config_module}"',
-        )
     if app not in config.get("apps").keys():
-        raise BadParameter(param_hint=["--app"], message=f'No app found in "{config}"')
+        raise BadOptionUsage(f'No app found in "{config}"', ctx=ctx)
 
     ctx.obj["config"] = config
     ctx.obj["location"] = location
     ctx.obj["app"] = app
-    try:
+
+    if ctx.invoked_subcommand == "init":
+        await Tortoise.init(config=config)
+    else:
+        if not os.path.isdir(location):
+            raise UsageError("You must exec init first", ctx=ctx)
         await Migrate.init_with_old_models(config, app, location)
-    except ConfigurationError:
-        pass
 
 
 @cli.command(help="Generate migrate changes file.")
 @click.option("--name", default="update", show_default=True, help="Migrate name.")
 @click.pass_context
-async def migrate(ctx, name):
+async def migrate(ctx: Context, name):
     config = ctx.obj["config"]
     location = ctx.obj["location"]
     app = ctx.obj["app"]
 
     ret = Migrate.migrate(name)
     if not ret:
-        click.secho("No changes detected", fg=Color.green)
+        return click.secho("No changes detected", fg=Color.yellow)
-    else:
+    Migrate.write_old_models(config, app, location)
-        Migrate.write_old_models(config, app, location)
+    click.secho(f"Success migrate {ret}", fg=Color.green)
-        click.secho(f"Success migrate {ret}", fg=Color.green)
 
 
 @cli.command(help="Upgrade to latest version.")
 @click.pass_context
-async def upgrade(ctx):
+async def upgrade(ctx: Context):
     app = ctx.obj["app"]
     config = ctx.obj["config"]
     connection = get_app_connection(config, app)
     available_versions = Migrate.get_all_version_files(is_all=False)
     if not available_versions:
-        return click.secho("No migrate items", fg=Color.green)
+        return click.secho("No migrate items", fg=Color.yellow)
     async with connection._in_transaction() as conn:
         for file in available_versions:
             file_path = os.path.join(Migrate.migrate_location, file)
@@ -103,16 +102,16 @@ async def upgrade(ctx):
 
 @cli.command(help="Downgrade to previous version.")
 @click.pass_context
-async def downgrade(ctx):
+async def downgrade(ctx: Context):
     app = ctx.obj["app"]
     config = ctx.obj["config"]
     connection = get_app_connection(config, app)
     available_versions = Migrate.get_all_version_files()
     if not available_versions:
-        return click.secho("No migrate items", fg=Color.green)
+        return click.secho("No migrate items", fg=Color.yellow)
 
     async with connection._in_transaction() as conn:
-        for file in available_versions:
+        for file in reversed(available_versions):
             file_path = os.path.join(Migrate.migrate_location, file)
             with open(file_path, "r") as f:
                 content = json.load(f)
@@ -120,7 +119,8 @@ async def downgrade(ctx):
                     downgrade_query_list = content.get("downgrade")
                     for downgrade_query in downgrade_query_list:
                         await conn.execute_query(downgrade_query)
-
+                else:
+                    continue
             with open(file_path, "w") as f:
                 content["migrate"] = False
                 json.dump(content, f, indent=4)
@@ -129,20 +129,20 @@ async def downgrade(ctx):
 
 @cli.command(help="Show current available heads in migrate location.")
 @click.pass_context
-def heads(ctx):
+def heads(ctx: Context):
     for version in Migrate.get_all_version_files(is_all=False):
-        click.secho(version, fg=Color.green)
+        click.secho(version, fg=Color.yellow)
 
 
 @cli.command(help="List all migrate items.")
 @click.pass_context
 def history(ctx):
     for version in Migrate.get_all_version_files():
-        click.secho(version, fg=Color.green)
+        click.secho(version, fg=Color.yellow)
 
 
 @cli.command(
-    help="Init migrate location and generate schema, you must call first before other actions."
+    help="Init migrate location and generate schema, you must exec first before other cmd."
 )
 @click.option(
     "--safe",
@@ -152,7 +152,7 @@ def history(ctx):
     show_default=True,
 )
 @click.pass_context
-async def init(ctx, safe):
+async def init(ctx: Context, safe):
     location = ctx.obj["location"]
     app = ctx.obj["app"]
     config = ctx.obj["config"]
@@ -165,15 +165,16 @@ async def init(ctx, safe):
         os.mkdir(dirname)
         click.secho(f"Success create migrate location {dirname}", fg=Color.green)
     else:
-        raise ClickException(f"Already inited app `{app}`")
+        return click.secho(f'Already inited app "{app}"', fg=Color.yellow)
 
     Migrate.write_old_models(config, app, location)
 
-    await Migrate.init_with_old_models(config, app, location)
+    connection = get_app_connection(config, app)
-    await generate_schema_for_client(get_app_connection(config, app), safe)
+    await generate_schema_for_client(connection, safe)
 
-    click.secho(f"Success init for app `{app}`", fg=Color.green)
+    return click.secho(f'Success init for app "{app}"', fg=Color.green)
 
 
 def main():
+    sys.path.insert(0, ".")
     cli(_anyio_backend="asyncio")

alice/ddl/__init__.py

@@ -101,14 +101,14 @@ class DDL:
 
         fk_name = self.schema_generator._generate_fk_name(
             from_table=db_table,
-            from_field=field.model_field_name,
+            from_field=field.source_field or field.model_field_name + "_id",
             to_table=field.related_model._meta.db_table,
             to_field=to_field_name,
         )
         return self._ADD_FK_TEMPLATE.format(
             table_name=db_table,
             fk_name=fk_name,
-            db_column=field.model_field_name,
+            db_column=field.source_field or field.model_field_name + "_id",
             table=field.related_model._meta.db_table,
             field=to_field_name,
             on_delete=field.on_delete,
@@ -118,11 +118,12 @@ class DDL:
         to_field_name = field.to_field_instance.source_field
         if not to_field_name:
             to_field_name = field.to_field_instance.model_field_name
+        db_table = model._meta.db_table
         return self._DROP_FK_TEMPLATE.format(
-            table_name=model._meta.db_table,
+            table_name=db_table,
             fk_name=self.schema_generator._generate_fk_name(
-                from_table=model._meta.db_table,
+                from_table=db_table,
-                from_field=field.model_field_name,
+                from_field=field.source_field or field.model_field_name + "_id",
                 to_table=field.related_model._meta.db_table,
                 to_field=to_field_name,
             ),

alice/migrate.py

@@ -5,7 +5,7 @@ from copy import deepcopy
 from datetime import datetime
 from typing import Dict, List, Type
 
-from tortoise import ForeignKeyFieldInstance, Model, Tortoise
+from tortoise import BackwardFKRelation, ForeignKeyFieldInstance, Model, Tortoise
 from tortoise.backends.mysql.schema_generator import MySQLSchemaGenerator
 from tortoise.fields import Field
 
@@ -18,6 +18,9 @@ from alice.utils import get_app_connection
 class Migrate:
     upgrade_operators: List[str] = []
     downgrade_operators: List[str] = []
+    _upgrade_fk_operators: List[str] = []
+    _downgrade_fk_operators: List[str] = []
+
     ddl: DDL
     migrate_config: dict
     old_models = "old_models"
@@ -73,7 +76,7 @@ class Migrate:
         filename = f"{cls._get_latest_version() + 1}_{now}_{name}.json"
         content = {
             "upgrade": cls.upgrade_operators,
-            "download": cls.downgrade_operators,
+            "downgrade": cls.downgrade_operators,
             "migrate": False,
         }
         with open(os.path.join(cls.migrate_location, filename), "w") as f:
@@ -94,18 +97,26 @@ class Migrate:
         if not cls.upgrade_operators:
             return False
 
+        cls._merge_operators()
+
         return cls._generate_diff_sql(name)
 
     @classmethod
-    def _add_operator(cls, operator: str, upgrade=True):
+    def _add_operator(cls, operator: str, upgrade=True, fk=False):
         if upgrade:
-            cls.upgrade_operators.append(operator)
+            if fk:
+                cls._upgrade_fk_operators.append(operator)
+            else:
+                cls.upgrade_operators.append(operator)
         else:
-            cls.downgrade_operators.append(operator)
+            if fk:
+                cls._downgrade_fk_operators.append(operator)
+            else:
+                cls.downgrade_operators.append(operator)
 
     @classmethod
     def cp_models(
-            cls, model_files: List[str], old_model_file,
+        cls, model_files: List[str], old_model_file,
     ):
         """
         cp currents models to old_model_files
@@ -113,13 +124,11 @@ class Migrate:
         :param old_model_file:
         :return:
         """
-        pattern = (
+        pattern = r"(ManyToManyField|ForeignKeyField|OneToOneField)\(('|\")(\w+)."
-            r"(ManyToManyField|ForeignKeyField|OneToOneField)\((model_name)?(\"|\')(\w+)(.+)\)"
-        )
         for i, model_file in enumerate(model_files):
             with open(model_file, "r") as f:
                 content = f.read()
-            ret = re.sub(pattern, rf"\1\2(\3{cls.diff_app}\5)", content)
+            ret = re.sub(pattern, rf"\1(\2{cls.diff_app}.", content)
             with open(old_model_file, "w" if i == 0 else "w+a") as f:
                 f.write(ret)
 
@@ -142,7 +151,7 @@ class Migrate:
 
     @classmethod
     def _diff_models(
-            cls, old_models: Dict[str, Type[Model]], new_models: Dict[str, Type[Model]], upgrade=True
+        cls, old_models: Dict[str, Type[Model]], new_models: Dict[str, Type[Model]], upgrade=True
     ):
         """
         diff models and add operators
@@ -184,18 +193,37 @@ class Migrate:
         new_keys = new_fields_map.keys()
         for new_key in new_keys:
             new_field = new_fields_map.get(new_key)
+            if cls._exclude_field(new_field):
+                continue
             if new_key not in old_keys:
-                cls._add_operator(cls._add_field(new_model, new_field), upgrade)
+                cls._add_operator(
+                    cls._add_field(new_model, new_field),
+                    upgrade,
+                    isinstance(new_field, ForeignKeyFieldInstance),
+                )
             else:
                 old_field = old_fields_map.get(new_key)
                 if old_field.index and not new_field.index:
-                    cls._add_operator(cls._remove_index(old_model, old_field), upgrade)
+                    cls._add_operator(
+                        cls._remove_index(old_model, old_field),
+                        upgrade,
+                        isinstance(old_field, ForeignKeyFieldInstance),
+                    )
                 elif new_field.index and not old_field.index:
-                    cls._add_operator(cls._add_index(new_model, new_field), upgrade)
+                    cls._add_operator(
+                        cls._add_index(new_model, new_field),
+                        upgrade,
+                        isinstance(new_field, ForeignKeyFieldInstance),
+                    )
+
         for old_key in old_keys:
-            if old_key not in new_keys:
+            field = old_fields_map.get(old_key)
-                field = old_fields_map.get(old_key)
+            if old_key not in new_keys and not cls._exclude_field(field):
-                cls._add_operator(cls._remove_field(old_model, field), upgrade)
+                cls._add_operator(
+                    cls._remove_field(old_model, field),
+                    upgrade,
+                    isinstance(field, ForeignKeyFieldInstance),
+                )
 
     @classmethod
     def _remove_index(cls, model: Type[Model], field: Field):
@@ -205,6 +233,10 @@ class Migrate:
     def _add_index(cls, model: Type[Model], field: Field):
         return cls.ddl.add_index(model, [field.model_field_name], field.unique)
 
+    @classmethod
+    def _exclude_field(cls, field: Field):
+        return isinstance(field, BackwardFKRelation)
+
     @classmethod
     def _add_field(cls, model: Type[Model], field: Field):
         if isinstance(field, ForeignKeyFieldInstance):
@@ -217,3 +249,28 @@ class Migrate:
         if isinstance(field, ForeignKeyFieldInstance):
             return cls.ddl.drop_fk(model, field)
         return cls.ddl.drop_column(model, field.model_field_name)
+
+    @classmethod
+    def _add_fk(cls, model: Type[Model], field: Field):
+        return cls.ddl.add_fk(model, field)
+
+    @classmethod
+    def _remove_fk(cls, model: Type[Model], field: Field):
+        return cls.ddl.drop_fk(model, field)
+
+    @classmethod
+    def _merge_operators(cls):
+        """
+        fk must be last when add,first when drop
+        :return:
+        """
+        for _upgrade_fk_operator in cls._upgrade_fk_operators:
+            if "ADD" in _upgrade_fk_operator:
+                cls.upgrade_operators.append(_upgrade_fk_operator)
+            else:
+                cls.upgrade_operators.insert(0, _upgrade_fk_operator)
+        for _downgrade_fk_operator in cls._downgrade_fk_operators:
+            if "ADD" in _downgrade_fk_operator:
+                cls.downgrade_operators.append(_downgrade_fk_operator)
+            else:
+                cls.downgrade_operators.insert(0, _downgrade_fk_operator)

poetry.lock

@@ -0,0 +1,539 @@
+[[package]]
+category = "main"
+description = "MySQL driver for asyncio."
+name = "aiomysql"
+optional = false
+python-versions = "*"
+version = "0.0.20"
+
+[package.dependencies]
+PyMySQL = ">=0.9,<=0.9.2"
+
+[package.extras]
+sa = ["sqlalchemy (>=1.0)"]
+
+[[package]]
+category = "main"
+description = "asyncio bridge to the standard sqlite3 module"
+name = "aiosqlite"
+optional = false
+python-versions = ">=3.6"
+version = "0.13.0"
+
+[[package]]
+category = "main"
+description = "High level compatibility layer for multiple asynchronous event loop implementations"
+name = "anyio"
+optional = false
+python-versions = ">=3.5.3"
+version = "1.3.0"
+
+[package.dependencies]
+async-generator = "*"
+sniffio = ">=1.1"
+
+[package.extras]
+curio = ["curio (>=0.9)"]
+doc = ["sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
+test = ["coverage (>=4.5)", "hypothesis (>=4.0)", "pytest (>=3.7.2)", "uvloop"]
+trio = ["trio (>=0.12)"]
+
+[[package]]
+category = "dev"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+name = "appdirs"
+optional = false
+python-versions = "*"
+version = "1.4.4"
+
+[[package]]
+category = "main"
+description = "Async generators and context managers for Python 3.5+"
+name = "async-generator"
+optional = false
+python-versions = ">=3.5"
+version = "1.10"
+
+[[package]]
+category = "main"
+description = "A simple anyio-compatible fork of Click, for powerful command line utilities."
+name = "asyncclick"
+optional = false
+python-versions = ">=3.6"
+version = "7.0.9"
+
+[package.dependencies]
+anyio = "*"
+
+[package.extras]
+dev = ["coverage", "pytest-runner", "pytest-trio", "pytest (>=3)", "sphinx", "tox"]
+docs = ["sphinx"]
+
+[[package]]
+category = "dev"
+description = "Enhance the standard unittest package with features for testing asyncio libraries"
+name = "asynctest"
+optional = false
+python-versions = ">=3.5"
+version = "0.13.0"
+
+[[package]]
+category = "dev"
+description = "Classes Without Boilerplate"
+name = "attrs"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "19.3.0"
+
+[package.extras]
+azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
+dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "pre-commit"]
+docs = ["sphinx", "zope.interface"]
+tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
+
+[[package]]
+category = "dev"
+description = "The uncompromising code formatter."
+name = "black"
+optional = false
+python-versions = ">=3.6"
+version = "19.10b0"
+
+[package.dependencies]
+appdirs = "*"
+attrs = ">=18.1.0"
+click = ">=6.5"
+pathspec = ">=0.6,<1"
+regex = "*"
+toml = ">=0.9.4"
+typed-ast = ">=1.4.0"
+
+[package.extras]
+d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
+
+[[package]]
+category = "main"
+description = "Foreign Function Interface for Python calling C code."
+name = "cffi"
+optional = false
+python-versions = "*"
+version = "1.14.0"
+
+[package.dependencies]
+pycparser = "*"
+
+[[package]]
+category = "main"
+description = "Fast ISO8601 date time parser for Python written in C"
+marker = "sys_platform != \"win32\" and implementation_name == \"cpython\""
+name = "ciso8601"
+optional = false
+python-versions = "*"
+version = "2.1.3"
+
+[[package]]
+category = "dev"
+description = "Composable command line interface toolkit"
+name = "click"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "7.1.2"
+
+[[package]]
+category = "main"
+description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
+name = "cryptography"
+optional = false
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
+version = "2.9.2"
+
+[package.dependencies]
+cffi = ">=1.8,<1.11.3 || >1.11.3"
+six = ">=1.4.1"
+
+[package.extras]
+docs = ["sphinx (>=1.6.5,<1.8.0 || >1.8.0)", "sphinx-rtd-theme"]
+docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
+idna = ["idna (>=2.1)"]
+pep8test = ["flake8", "flake8-import-order", "pep8-naming"]
+test = ["pytest (>=3.6.0,<3.9.0 || >3.9.0,<3.9.1 || >3.9.1,<3.9.2 || >3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,<3.79.2 || >3.79.2)"]
+
+[[package]]
+category = "dev"
+description = "the modular source code checker: pep8 pyflakes and co"
+name = "flake8"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+version = "3.8.1"
+
+[package.dependencies]
+mccabe = ">=0.6.0,<0.7.0"
+pycodestyle = ">=2.6.0a1,<2.7.0"
+pyflakes = ">=2.2.0,<2.3.0"
+
+[[package]]
+category = "main"
+description = "Simple module to parse ISO 8601 dates"
+marker = "sys_platform == \"win32\" or implementation_name != \"cpython\""
+name = "iso8601"
+optional = false
+python-versions = "*"
+version = "0.1.12"
+
+[[package]]
+category = "dev"
+description = "A Python utility / library to sort Python imports."
+name = "isort"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "4.3.21"
+
+[package.extras]
+pipfile = ["pipreqs", "requirementslib"]
+pyproject = ["toml"]
+requirements = ["pipreqs", "pip-api"]
+xdg_home = ["appdirs (>=1.4.0)"]
+
+[[package]]
+category = "dev"
+description = "McCabe checker, plugin for flake8"
+name = "mccabe"
+optional = false
+python-versions = "*"
+version = "0.6.1"
+
+[[package]]
+category = "dev"
+description = "Utility library for gitignore style pattern matching of file paths."
+name = "pathspec"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "0.8.0"
+
+[[package]]
+category = "dev"
+description = "Python style guide checker"
+name = "pycodestyle"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.6.0"
+
+[[package]]
+category = "main"
+description = "C parser in Python"
+name = "pycparser"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.20"
+
+[[package]]
+category = "dev"
+description = "passive checker of Python programs"
+name = "pyflakes"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.2.0"
+
+[[package]]
+category = "main"
+description = "Pure Python MySQL Driver"
+name = "pymysql"
+optional = false
+python-versions = "*"
+version = "0.9.2"
+
+[package.dependencies]
+cryptography = "*"
+
+[[package]]
+category = "main"
+description = "A SQL query builder API for Python"
+name = "pypika"
+optional = false
+python-versions = "*"
+version = "0.37.6"
+
+[[package]]
+category = "dev"
+description = "Alternative regular expression module, to replace re."
+name = "regex"
+optional = false
+python-versions = "*"
+version = "2020.5.13"
+
+[[package]]
+category = "main"
+description = "Python 2 and 3 compatibility utilities"
+name = "six"
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+    {file = "regex-2020.5.13.tar.gz", hash = "sha256:cd931f9cca663617ba7a74b6500c6857405271b142edff68b2530e458b80a116"},
+]
+six = [
+    {file = "six-1.14.0-py2.py3-none-any.whl", hash = "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"},
+    {file = "six-1.14.0.tar.gz", hash = "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a"},
+]
+sniffio = [
+    {file = "sniffio-1.1.0-py3-none-any.whl", hash = "sha256:20ed6d5b46f8ae136d00b9dcb807615d83ed82ceea6b2058cecb696765246da5"},
+    {file = "sniffio-1.1.0.tar.gz", hash = "sha256:8e3810100f69fe0edd463d02ad407112542a11ffdc29f67db2bf3771afb87a21"},
+]
+taskipy = [
+    {file = "taskipy-1.2.1-py3-none-any.whl", hash = "sha256:99bdaf5b19791c2345806847147e0fc2d28e1ac9446058def5a8b6b3fc9f23e2"},
+    {file = "taskipy-1.2.1.tar.gz", hash = "sha256:5eb2c3b1606c896c7fa799848e71e8883b880759224958d07ba760e5db263175"},
+]
+toml = [
+    {file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"},
+    {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
+]
+tortoise-orm = []
+typed-ast = [
+    {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3"},
+    {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:aaee9905aee35ba5905cfb3c62f3e83b3bec7b39413f0a7f19be4e547ea01ebb"},
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+    {file = "typed_ast-1.4.1-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:269151951236b0f9a6f04015a9004084a5ab0d5f19b57de779f908621e7d8b75"},
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+    {file = "typed_ast-1.4.1-cp38-cp38-win32.whl", hash = "sha256:715ff2f2df46121071622063fc7543d9b1fd19ebfc4f5c8895af64a77a8c852c"},
+    {file = "typed_ast-1.4.1-cp38-cp38-win_amd64.whl", hash = "sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4"},
+    {file = "typed_ast-1.4.1-cp39-cp39-macosx_10_15_x86_64.whl", hash = "sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34"},
+    {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
+]
+typing-extensions = [
+    {file = "typing_extensions-3.7.4.2-py2-none-any.whl", hash = "sha256:f8d2bd89d25bc39dabe7d23df520442fa1d8969b82544370e03d88b5a591c392"},
+    {file = "typing_extensions-3.7.4.2-py3-none-any.whl", hash = "sha256:6e95524d8a547a91e08f404ae485bbb71962de46967e1b71a0cb89af24e761c5"},
+    {file = "typing_extensions-3.7.4.2.tar.gz", hash = "sha256:79ee589a3caca649a9bfd2a8de4709837400dfa00b6cc81962a1e6a1815969ae"},
+]

pyproject.toml

@@ -15,12 +15,13 @@ taskipy = "*"
 asynctest = "*"
 flake8 = "*"
 isort = "*"
-black = "*"
+black = "^19.10b0"
+
+[tool.taskipy.tasks]
+export = "poetry export -f requirements.txt --without-hashes > requirements.txt"
+export-dev = "poetry export -f requirements.txt --dev --without-hashes > requirements-dev.txt"
 
 [build-system]
 requires = ["poetry>=0.12"]
 build-backend = "poetry.masonry.api"
 
-[tool.taskipy.tasks]
-export = "poetry export -f requirements.txt --without-hashes > requirements.txt"
-export-dev = "poetry export -f requirements.txt --dev --without-hashes > requirements-dev.txt"

requirements-dev.txt

@@ -1,24 +1,31 @@
 aiomysql==0.0.20
 aiosqlite==0.13.0
 anyio==1.3.0
+appdirs==1.4.4
 async-generator==1.10
 asyncclick==7.0.9
 asynctest==0.13.0
+attrs==19.3.0
+black==19.10b0
 cffi==1.14.0
 ciso8601==2.1.3; sys_platform != "win32" and implementation_name == "cpython"
+click==7.1.2
 cryptography==2.9.2
 flake8==3.8.1
 iso8601==0.1.12; sys_platform == "win32" or implementation_name != "cpython"
 isort==4.3.21
 mccabe==0.6.1
+pathspec==0.8.0
 pycodestyle==2.6.0
 pycparser==2.20
 pyflakes==2.2.0
 pymysql==0.9.2
 pypika==0.37.6
+regex==2020.5.13
 six==1.14.0
 sniffio==1.1.0
 taskipy==1.2.1
 toml==0.10.1
 -e git+https://github.com/tortoise/tortoise-orm.git@95c384a4742ee5980f8e4ae934bfdb0d8137bb40#egg=tortoise-orm
+typed-ast==1.4.1
 typing-extensions==3.7.4.2

tests/backends/mysql/test_migrate.py

@@ -1,6 +1,17 @@
-from tests.backends.mysql import DBTestCase
+from asynctest import TestCase
+from tortoise import Tortoise
+
+from alice.migrate import Migrate
+from tests.backends.mysql import TORTOISE_ORM
 
 
-class TestMigrate(DBTestCase):
+class TestMigrate(TestCase):
+    async def setUp(self) -> None:
+        await Migrate.init_with_old_models(TORTOISE_ORM, "models", "./migrations")
+
     async def test_migrate(self):
-        pass
+        Migrate.diff_model(
+            Tortoise.apps.get("models").get("Category"),
+            Tortoise.apps.get("diff_models").get("Category"),
+        )
+        print(Migrate.upgrade_operators)

tox.ini

@@ -9,11 +9,3 @@ commands=
     make ci
 deps =
     -r requirements-dev.txt
-
-[testenv:pypy3]
-deps =
-    -r tests/requirements-pypy.txt
-setenv =
-    PYTEST_ADDOPTS="--no-cov"
-commands=
-    make _testall